Jagwire brake derailleur housings face a continuous gauntlet of testing to ensure they are fully compatible with all major component systems on the market today. Using Lead free PVC Jagwire housings meet all international standards and regulations for chemical and material content. Featured equipment on bicycles from BMC to Specialized, Merida to Centurion, Giant to GT and Cannondale to Norco, Jagwire housings are trusted by hundreds of bicycle manufacturers to deliver the performance they demand.